青研早9号大白菜秋早熟大白菜新品种,2010年3月通过山东省农作物品种审定委员会审定。生长期60～65天,株型较开张,株高38厘米,开展度70厘米,外叶绿色,叶面皱缩,叶球叠抱,倒卵形,球顶平,球高26厘米左右,球宽16厘米左右,球形指数1.6,单株净菜重2.5～3千克,净菜率78%,田间综合抗性强, Green research early 9 cabbage new varieties of early maturing Chinese cabbage, March 2010 by the Shandong Provincial Crop Variety Approval Committee. Growing period of 60 to 65 days, the plant type more open, 38 cm height, the degree of 70 cm, the outer leaves green, leaf folds, leaf ball stacked hold, obovate, the ball flat, the ball 26 cm high, ball width 16 centimeters, spherical index 1.6, single net weight 2.5 to 3 kg, net food rate of 78%, the field of comprehensive resistance,